Positivity of $2\times2$ block matrices of operators

DOI10.1215/17358787-2019-0019zbMath1476.47006arXiv1904.08680OpenAlexW3101237865MaRDI QIDQ2314370

Mohsen Kian, Qingxiang Xu, Mohammad Sal Moslehian

Publication date: 22 July 2019

Published in: Banach Journal of Mathematical Analysis (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1904.08680

zbMATH Keywords

Hilbert spacepositive operatorblock matrix

Mathematics Subject Classification ID

Factorization theory (including Wiener-Hopf and spectral factorizations) of linear operators (47A68) Equations involving linear operators, with operator unknowns (47A62) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Research exposition (monographs, survey articles) pertaining to operator theory (47-02) Structure theory of linear operators (47A65) Positive linear operators and order-bounded operators (47B65) Operators on Hilbert spaces (general) (47B02) Operator matrices (47A08)

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